Woah, I love your boss' advice! It is necessary to know your audience before you can prioritize.
Also, I don't think consumers want features in the sense of "more", but in the sense of "key". Maybe it is Key Features, Stability, Performance, More Features, in that order.
In my experience clients and consumers really just care about Feature Lists; power users maybe lean more towards Key Features. Performance and Stability are only a concern when they've already become a problem.
Really? I don't think consumers have shown at all that they care about (or are even aware of) feature lists. Even facebook is shifting toward a strategy of cobbling together single-feature apps instead of building one big feature-heavy platform.
Also, I don't think consumers want features in the sense of "more", but in the sense of "key". Maybe it is Key Features, Stability, Performance, More Features, in that order.